<?php
/**
 * ---------------------------------------------------------------------
 * GLPI - Gestionnaire Libre de Parc Informatique
 * Copyright (C) 2015-2017 Teclib' and contributors.
 *
 * http://glpi-project.org
 *
 * based on GLPI - Gestionnaire Libre de Parc Informatique
 * Copyright (C) 2003-2014 by the INDEPNET Development Team.
 *
 * ---------------------------------------------------------------------
 *
 * LICENSE
 *
 * This file is part of GLPI.
 *
 * GLPI is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * GLPI is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with GLPI. If not, see <http://www.gnu.org/licenses/>.
 * ---------------------------------------------------------------------
 */

if (!defined('GLPI_ROOT')) {
   die("Sorry. You can't access this file directly");
}

/**
 *  Update class
**/
class Update extends CommonGLPI {
   private $args = [];
   private $DB;
   private $migration;
   private $version;
   private $dbversion;
   private $language;

   /**
    * Constructor
    *
    * @param object $DB   Database instance
    * @param array  $args Command line arguments; default to empty array
    */
   public function __construct($DB, $args = []) {
      $this->DB = $DB;
      $this->args = $args;
      $this->declareOldItems();
   }

   /**
    * Initialize session for update
    *
    * @return void
    */
   public function initSession() {
      if (is_writable(GLPI_SESSION_DIR)) {
         Session::setPath();
      } else {
         if (isCommandLine()) {
            die("Can't write in ".GLPI_SESSION_DIR."\n");
         }
      }
      Session::start();

      if (isCommandLine()) {
         // Init debug variable
         $_SESSION = ['glpilanguage' => (isset($this->args['lang']) ? $this->args['lang'] : 'en_GB')];
         $_SESSION["glpi_currenttime"] = date("Y-m-d H:i:s");
      }

      // Init debug variable
      // Only show errors
      Toolbox::setDebugMode(Session::DEBUG_MODE, 0, 0, 1);
   }

   /**
    * Get current values (versions, lang, ...)
    *
    * @return array
    */
   public function getCurrents() {
      $currents = [];
      $DB = $this->DB;

      if (!TableExists('glpi_config') && !TableExists('glpi_configs')) {
         //very, very old version!
         $currents = [
            'version'   => '0.1',
            'dbversion' => '0.1',
            'language'  => 'en_GB'
         ];
      } else if (!TableExists("glpi_configs")) {
         // < 0.78
         // Get current version
         $query = "SELECT `version`, 'language'
                  FROM `glpi_config`";
         $result = $DB->queryOrDie($query, "get current version");

         $currents['version']    = trim($DB->result($result, 0, 0));
         $currents['dbversion']  = $currents['version'];
         $currents['language']   = trim($DB->result($result, 0, 1));
      } else if (FieldExists('glpi_configs', 'version')) {
         // < 0.85
         // Get current version and language
         $query = "SELECT `version`, `language`
                  FROM `glpi_configs`";
         $result = $DB->queryOrDie($query, "get current version");

         $currents['version']    = trim($DB->result($result, 0, 0));
         $currents['dbversion']  = $currents['version'];
         $currents['language']   = trim($DB->result($result, 0, 1));
      } else {
         $currents = Config::getConfigurationValues(
            'core',
            ['version', 'dbversion', 'language']
         );

         if (!isset($currents['dbversion'])) {
            $currents['dbversion'] = $currents['version'];
         }
      }

      $this->version    = $currents['version'];
      $this->dbversion  = $currents['dbversion'];
      $this->language   = $currents['language'];

      return $currents;
   }


   /**
    * Run updates
    *
    * @param string $current_version Current version
    *
    * @return void
    */
   public function doUpdates($current_version = null) {
      if ($current_version === null) {
         if ($this->version === null) {
            throw new \RuntimeException('Cannot process updates without any version specified!');
         }
         $current_version = $this->version;
      }

      $DB = $this->DB;

      // To prevent problem of execution time
      ini_set("max_execution_time", "0");

      $updir = __DIR__ . "/../install/";

      if (isCommandLine() && version_compare($current_version, '0.72.3', 'lt')) {
         die('Upgrade from command line is not supported before 0.72.3!');
      }

      // Update process desactivate all plugins
      $plugin = new Plugin();
      $plugin->unactivateAll();

      switch ($current_version) {
         case '0.1':
            include_once("update_to_031.php");
            updateDbTo031();
         case "0.31" :
            $ret = [];
            include_once "{$updir}update_031_04.php";
            update031to04();
            if (!empty($ret) && $ret["adminchange"]) {
               echo "<div class='center'> <h2>". __("All users having administrators rights have have been updated to 'super-admin' rights with the creation of his new user type.") ."<h2></div>";
            }
         case "0.4" :
         case "0.41" :
            include_once("{$updir}update_04_042.php");
            update04to042();

         case "0.42" :
            showLocationUpdateForm();
            include_once("{$updir}update_042_05.php");
            update042to05();

         case "0.5" :
            include_once("{$updir}update_05_051.php");
            update05to051();

         case "0.51" :
         case "0.51a" :
            include_once("{$updir}update_051_06.php");
            update051to06();

         case "0.6" :
            include_once("{$updir}update_06_065.php");
            update06to065();

         case "0.65" :
            include_once("{$updir}update_065_068.php");
            update065to068();

         case "0.68" :
            include_once("{$updir}update_068_0681.php");
            update068to0681();

         case "0.68.1" :
         case "0.68.2" :
         case "0.68.3" :
            // Force update content
            if (showLocationUpdateForm()) {
               $query = "UPDATE `glpi_config`
                        SET `version` = ' 0.68.3x'";
               $DB->queryOrDie($query, "0.68.3");

               showContentUpdateForm();
               exit();
            }
         case "0.68.3x": // Special version for replay upgrade process from here
            include_once("{$updir}update_0681_07.php");
            update0681to07();

         case "0.7" :
         case "0.70.1" :
         case "0.70.2" :
            include_once("{$updir}update_07_071.php");
            update07to071();

         case "0.71" :
         case "0.71.1" :
            include_once("{$updir}update_071_0712.php");
            update071to0712();

         case "0.71.2" :
            include_once("{$updir}update_0712_0713.php");
            update0712to0713();

         case "0.71.3" :
         case "0.71.4" :
         case "0.71.5" :
         case "0.71.6" :
            include_once("{$updir}update_0713_072.php");
            update0713to072();

         case "0.72" :
            include_once("{$updir}update_072_0721.php");
            update072to0721();

         case "0.72.1" :
            include_once("{$updir}update_0721_0722.php");
            update0721to0722();

         case "0.72.2" :
         case "0.72.21" :
            include_once("{$updir}update_0722_0723.php");
            update0722to0723();

         case "0.72.3" :
         case "0.72.4" :
            include_once("{$updir}update_0723_078.php");
            update0723to078();

         case "0.78" :
            include_once("{$updir}update_078_0781.php");
            update078to0781();

         case "0.78.1" :
            include_once("{$updir}update_0781_0782.php");
            update0781to0782();

         case "0.78.2":
         case "0.78.3":
         case "0.78.4":
         case "0.78.5":
            include_once("{$updir}update_0782_080.php");
            update0782to080();

         case "0.80" :
            include_once("{$updir}update_080_0801.php");
            update080to0801();

         case "0.80.1" :
         case "0.80.2" :
            include_once("{$updir}update_0801_0803.php");
            update0801to0803();

         case "0.80.3" :
         case "0.80.4" :
         case "0.80.5" :
         case "0.80.6" :
         case "0.80.61" :
         case "0.80.7" :
            include_once("{$updir}update_0803_083.php");
            update0803to083();

         case "0.83" :
            include_once("{$updir}update_083_0831.php");
            update083to0831();

         case "0.83.1" :
         case "0.83.2" :
            include_once("{$updir}update_0831_0833.php");
            update0831to0833();

         case "0.83.3" :
         case "0.83.31" :
         case "0.83.4" :
         case "0.83.5" :
         case "0.83.6" :
         case "0.83.7" :
         case "0.83.8" :
         case "0.83.9" :
         case "0.83.91" :
            include_once("{$updir}update_0831_084.php");
            update0831to084();

         case "0.84" :
            include_once("{$updir}update_084_0841.php");
            update084to0841();

         case "0.84.1" :
         case "0.84.2" :
            include_once("{$updir}update_0841_0843.php");
            update0841to0843();

         case "0.84.3" :
            include_once("{$updir}update_0843_0844.php");
            update0843to0844();

         case "0.84.4" :
         case "0.84.5" :
            include_once("{$updir}update_0845_0846.php");
            update0845to0846();

         case "0.84.6" :
         case "0.84.7" :
         case "0.84.8" :
         case "0.84.9" :
            include_once("{$updir}update_084_085.php");
            update084to085();

         case "0.85" :
         case "0.85.1" :
         case "0.85.2" :
            include_once("{$updir}update_085_0853.php");
            update085to0853();

         case "0.85.3" :
         case "0.85.4" :
            include_once("{$updir}update_0853_0855.php");
            update0853to0855();

         case "0.85.5" :
            include_once("{$updir}update_0855_090.php");
            update0855to090();

         case "0.90" :
            include_once("{$updir}update_090_0901.php");
            update090to0901();

         case "0.90.1" :
         case "0.90.2" :
         case "0.90.3" :
         case "0.90.4" :
            include_once("{$updir}update_0901_0905.php");
            update0901to0905();

         case "0.90.5" :
            include_once("{$updir}update_0905_91.php");
            update0905to91();

         case "9.1" :
         case "0.91":
            include_once("{$updir}update_91_911.php");
            update91to911();

         case "9.1.1":
         case "9.1.2":
            include_once("{$updir}update_911_913.php");
            update911to913();

         case "9.1.3":
         case "9.1.4":
         case GLPI_PREVER:
            include_once("{$updir}update_91_92.php");
            update91to92();
            break;

         case GLPI_VERSION:
         case GLPI_SCHEMA_VERSION:
            break;

         default :
            $message = sprintf(
               __('Unsupported version (%1$s)'),
               $current_version
            );
            if (isCommandLine()) {
               die("$message\n");
            } else {
               $this->migration->displayWarning($message, true);
            }
      }

      // Update version number and default langage and new version_founded ---- LEAVE AT THE END
      Config::setConfigurationValues('core', ['version'             => GLPI_VERSION,
                                              'dbversion'           => GLPI_SCHEMA_VERSION,
                                              'language'            => $this->language,
                                              'founded_new_version' => '']);

      if (defined('GLPI_SYSTEM_CRON')) {
         // Downstream packages may provide a good system cron
         $query = "UPDATE `glpi_crontasks` SET `mode`=2 WHERE `name`!='watcher' AND (`allowmode` & 2)";
         $DB->queryOrDie($query);
      }

      if (isCommandLine() && isset($this->args['optimize']) || !isCommandLine()) {
         DBmysql::optimize_tables($this->migration);
         if (isCommandLine()) {
            $this->migration->displayWarning(__("Optimize done."));
         }
      }
   }

   /**
    * Declare old items for compatibility
    *
    * @return void
    */
   public function declareOldItems() {
      // Old itemtypes
      define("GENERAL_TYPE", 0);
      define("COMPUTER_TYPE", 1);
      define("NETWORKING_TYPE", 2);
      define("PRINTER_TYPE", 3);
      define("MONITOR_TYPE", 4);
      define("PERIPHERAL_TYPE", 5);
      define("SOFTWARE_TYPE", 6);
      define("CONTACT_TYPE", 7);
      define("ENTERPRISE_TYPE", 8);
      define("INFOCOM_TYPE", 9);
      define("CONTRACT_TYPE", 10);
      define("CARTRIDGEITEM_TYPE", 11);
      define("TYPEDOC_TYPE", 12);
      define("DOCUMENT_TYPE", 13);
      define("KNOWBASE_TYPE", 14);
      define("USER_TYPE", 15);
      define("TRACKING_TYPE", 16);
      define("CONSUMABLEITEM_TYPE", 17);
      define("CONSUMABLE_TYPE", 18);
      define("CARTRIDGE_TYPE", 19);
      define("SOFTWARELICENSE_TYPE", 20);
      define("LINK_TYPE", 21);
      define("STATE_TYPE", 22);
      define("PHONE_TYPE", 23);
      define("DEVICE_TYPE", 24);
      define("REMINDER_TYPE", 25);
      define("STAT_TYPE", 26);
      define("GROUP_TYPE", 27);
      define("ENTITY_TYPE", 28);
      define("RESERVATION_TYPE", 29);
      define("AUTHMAIL_TYPE", 30);
      define("AUTHLDAP_TYPE", 31);
      define("OCSNG_TYPE", 32);
      define("REGISTRY_TYPE", 33);
      define("PROFILE_TYPE", 34);
      define("MAILGATE_TYPE", 35);
      define("RULE_TYPE", 36);
      define("TRANSFER_TYPE", 37);
      define("BOOKMARK_TYPE", 38);
      define("SOFTWAREVERSION_TYPE", 39);
      define("PLUGIN_TYPE", 40);
      define("COMPUTERDISK_TYPE", 41);
      define("NETWORKING_PORT_TYPE", 42);
      define("FOLLOWUP_TYPE", 43);
      define("BUDGET_TYPE", 44);

      // Old devicetypes
      define("MOBOARD_DEVICE", 1);
      define("PROCESSOR_DEVICE", 2);
      define("RAM_DEVICE", 3);
      define("HDD_DEVICE", 4);
      define("NETWORK_DEVICE", 5);
      define("DRIVE_DEVICE", 6);
      define("CONTROL_DEVICE", 7);
      define("GFX_DEVICE", 8);
      define("SND_DEVICE", 9);
      define("PCI_DEVICE", 10);
      define("CASE_DEVICE", 11);
      define("POWER_DEVICE", 12);
   }

   /**
    * Set migration
    *
    * @param Migration $migration Migration instance
    *
    * @return Update
    */
   public function setMigration(Migration $migration) {
      $this->migration = $migration;
      return $this;
   }
}
